PLATE SHIELD FOR TUNNELS

SCUDO A LAME PER GALLERIE

An illustrated article describes the design and fabrication of a plate shield for the excavation of twin motorway tunnels. The shield, claimed to be amongst the largest ever built, was prefabricated from steel plate in sections of a size and weight compatible with transport facilities and bolted together on site. The basic characteristics of the machine are as follows: longitudinal extension with cutters open 8.8 m; longitudinal extension with cutters closed 7.8 m; transverse extension on the perimeter of the arc 28.7 M. The propulsion system comprises 26 hydraulic jacks of 60 T each, 28 of 160 t, and 8 of 300 t. The tunnels under construction are northwest of the town of algiers and constitute the completion of the oued ouchaia radial road.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/03732916
• Authors:
  • Cozzani, R
• Publication Date: 1988-3-4

Language

• Undetermined

Media Info

• Pagination: p. 277-9
• Serial:
  • LE STRADE
  • Volume: 90
  • Issue Number: 1247
  • Publisher: Casa Editrice la fiaccola
  • ISSN: 0373-2916

Subject/Index Terms

• TRT Terms: Construction; Equipment; Freeways; Prefabricated structures; Shielding (Tunneling); Steel; Tunnels
• Subject Areas: Bridges and other structures; Construction; Highways;

Filing Info

• Accession Number: 00481718
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Files: ITRD, TRIS
• Created Date: Apr 30 1989 12:00AM